Display apparatus including cooling section

Abstract

A display apparatus includes a display section, a control section, and a cooling section including a first ceiling section, a second ceiling section, a first connecting section and an air stream generating section. The first ceiling section is formed such that a distance of the first ceiling section from a non-display surface of the display section is shorter than that of the second ceiling section, and a ventilating area of a first ventilating passage is smaller than that of a second ventilating passage. The air stream generating section is configured such that an air stream is generated from the second ventilating passage toward the first ventilating passage so as to take the air out of the first ventilating passage and the second ventilating passage, and replenish the taken air with the ambient air. The control section is provided on a control section mounting surface of the first ceiling section.

What is claimed is: 
     
       1. A display apparatus comprising:
 a display section having a display surface that displays an image; 
 a control section that controls operation of the display section; and 
 a cooling section disposed on a non-display surface opposite to the display surface in the display section, the cooling section including:
 side sections; 
 a first ceiling section provided so as to form a first ventilating passage having a predetermined ventilating area together with the non-display surface and the side sections, 
 a second ceiling section provided so as to form a second ventilating passage having a predetermined ventilating area together with the non-display surface and the side sections, 
 a third ceiling section provided so as to form a third ventilating passage having a predetermined ventilating area together with the non-display surface and the side sections, the third ceiling section being provided such that the first ventilating passage is located between the second ventilating passage and the third ventilating passage in a first direction which is a direction from the second ventilating passage toward the first ventilating passage along the non-display surface; 
 a first connecting section provided so as to connect one end of the first ceiling section in the first direction and one end of the second ceiling section in the first direction such that the first ventilating passage and the second ventilating passage are communicated with each other, 
 a second connecting section provided so as to connect another end of the first ceiling section in the first direction and one end of the third ceiling section in the first direction such that the first ventilating passage and the third ventilating passage are communicated with each other, and 
 an air stream generating section, 
 
 the side sections being provided upright on the non-display surface so as to support the first ceiling section, the second ceiling section, and the third ceiling section, and connecting both ends of the first ceiling section in a second direction, the both ends of the second ceiling section in the second direction, and both ends of the third ceiling section in the second direction, the second direction being a direction orthogonal to the first direction along the non-display surface, 
 the first ceiling section being provided such that a distance thereof from the non-display surface is shorter compared to the second ceiling section and the third ceiling section, and the ventilating area of the first ventilating passage is smaller than the ventilating area of the second ventilating passage and the ventilating area of the third ventilating passage, 
 a first inlet port which is an opening being formed between another end of the second ceiling section in the first direction and the non-display surface, 
 a second inlet port which is an opening being formed between another end of the third ceiling section in the first direction and the non-display surface, 
 an outlet port which is an opening being formed in the third ceiling section, 
 the first ceiling section, the second ceiling section, the third ceiling section, the first connecting section, the second connecting section and the side sections together with the non-display surface forming a substantially closed space which is closed excluding the first inlet port, the second inlet port and the outlet port, 
 the air stream generating section being provided so as to face the outlet port, on an outer surface of the third ceiling section which is opposed to an inner surface of the third ceiling section facing the third ventilating passage, 
 and being provided such that an air stream is generated from an inner surface side of the third ceiling section toward an outer surface side of the third ceiling section so as to take the air out of the substantially closed space, and replenish the taken air with the ambient air, and 
 the control section being provided on a control section mounting surface of the first ceiling section that is a surface opposite to a surface facing the first ventilating passage. 
 
     
     
       2. The display apparatus of  claim 1 , wherein the cooling section has a duct structure such that the first inlet port, the second inlet port and the outlet port are formed in one surface of the cooling section respectively, and
 the first inlet port is formed on a second ventilating passage side in the cooling section, the second inlet port is formed on a first ventilating passage side in the cooling section with respect to the first inlet port, and the outlet port is formed on a first ventilating passage side in the cooling section with respect to the first inlet port. 
 
     
     
       3. The display apparatus of  claim 2 , comprising a plurality of the cooling sections having the duct structure,
 wherein the control section is provided over each of the control section mounting surfaces in the plurality of the cooling sections having the duct structure. 
 
     
     
       4. The display apparatus of  claim 2 , wherein the cooling section is configured to satisfy the following formula (1):
     P>Q/R   (1)
 
 wherein a distance from the outlet port to the display section is P [cm], an opening area of the outlet port is Q [cm 2 ], and an opening perimeter length of the outlet port is R [cm]. 
 
     
     
       5. The display apparatus of  claim 1 , wherein the cooling section is configured such that in the first direction, a distance between a front end of the display section in the first direction and a front end of the first ceiling section in the first direction is greater than 0% and less than or equal to 20% of a length of the display section in the first direction.